How To Fix /SAPAPO/OM_TEST255 - &1 for input size &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_TEST -

• Message number: 255

• Message text: &1 for input size &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OM_TEST255 - &1 for input size &2 ?

  The SAP error message /SAPAPO/OM_TEST255 typically relates to issues in the SAP Advanced Planning and Optimization (APO) module, particularly when dealing with input sizes that exceed certain limits. This error message indicates that the input size for a specific operation or function is too large, which can lead to performance issues or system constraints.
  Cause:
  The error is triggered when the input size (e.g., the number of records, data volume, or complexity of the operation) exceeds the predefined limits set within the SAP system. This can happen in various scenarios, such as:
  
  Running a planning run with too many materials or locations.
  Executing a heuristic or optimization that processes a large dataset.
  Importing or exporting data that exceeds the system's capacity.
  
  Solution:
  To resolve this error, consider the following approaches:
  
  
  Reduce Input Size: 
  
  Break down the input data into smaller batches. For example, if you are processing a large number of materials, try to run the process for a smaller subset of materials at a time.
  
  
  
  Optimize Data:
  
  Review the data being processed and eliminate any unnecessary records or reduce the complexity of the data set.
  
  
  
  Adjust System Parameters:
  
  Check if there are any configurable parameters in the APO settings that can be adjusted to allow for larger input sizes. This may involve consulting with your SAP Basis or technical team.
  
  
  
  Increase System Resources:
  
  If feasible, consider increasing the system resources (e.g., memory, processing power) to handle larger datasets.
  
  
  
  Review Custom Code:
  
  If there are any custom developments or enhancements in your APO system, review them to ensure they are not contributing to the issue.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes or patches that may address this specific error or provide guidance on handling large input sizes.
  
  
  
  Related Information:
  
  SAP Documentation: Review the official SAP documentation for APO to understand the limitations and best practices for handling large datasets.
  Performance Tuning: Consider performance tuning strategies for your APO system to improve its ability to handle larger datasets.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  
  If the problem persists after trying these solutions, it may be beneficial to reach out to SAP support for further assistance.